\begin{tabular}{l*{4}{c}}\hline\hline
&\multicolumn{1}{c}{Minimum Wage}&\multicolumn{1}{c}{Written Contract}&\multicolumn{1}{c}{Social Security}&\multicolumn{1}{c}{ }\\\hline
\hline
No employee has benefit&       11.47&       48.79&       34.00\\
Some employees have benefit&       21.70&       16.26&       45.86\\
All employees have benefit&       66.83&       34.95&       20.13\\
Total       &      100.00&      100.00&      100.00\\
\hline\end{tabular}
